2012 Hyundai Sonata Hybrid: Reliability Data

Source: NHTSA — 213 complaints
213
Total Complaints
72,000mi
Median Mileage
ENGINE
Top Issue
2
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

40,750 25th Percentile
72,000 Median Mileage
117,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE
67
POWER TRAIN
28
ELECTRICAL SYSTEM
21
UNKNOWN OR OTHER
14
VEHICLE SPEED CONTROL
13
SERVICE BRAKES
11
SERVICE BRAKES, HYDRAULIC
11
STEERING
10
FUEL/PROPULSION SYSTEM
5
STRUCTURE:BODY
4

Severity Assessment

2
Crashes
9
Fires
6
Injuries
0
Deaths

Sample Complaint Reports

"PULLING INTO TRAFFIC THE CAR QUIT, LEAVING ME STARRING DOWN THE ONCOMING TRAFFIC. I WAS ABLE TO COAST TO THE SIDE AND GET IT RESTARTED. THIS HAPPENED TWICE DURING THE SAME DAY. IT WILL ALSO ONLY CHARGE THE BATTERIES TO 50%, AND SOMETIME THE CAR WON'T OPERATE ON ONLY BATTERY POWER. THIS IS A POTE..."
"WHILE SLOWLY MOVING DOWNHILL, ON THE FREEWAY, DURING RUSH HOUR TRAFFIC, I ATTEMPTED TO CHANGE LANES AND ACCELERATED QUICKLY. THE SWITCH FROM HYBRID TO GAS ENGINE INTERFACE ONLY CAUSED THE ENGINE TO REV (INCREASE RPM) WITHOUT ANY GEAR BEING ENGAGED. I QUICKLY LET OFF THE PEDDLE AND DEPRESSED IT AGAIN..."
"WHILE SLOWLY MOVING DOWNHILL, ON THE FREEWAY, DURING RUSH HOUR TRAFFIC, I ATTEMPTED TO CHANGE LANES AND ACCELERATED QUICKLY. THE SWITCH FROM HYBRID TO GAS ENGINE INTERFACE ONLY CAUSED THE ENGINE TO REV (INCREASE RPM) WITHOUT ANY GEAR BEING ENGAGED. I QUICKLY LET OFF THE PEDDLE AND DEPRESSED IT AGAIN..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28